The Harmonies of the World by Johannes Kepler



Download 5.13 Mb.
Page11/18
Date26.04.2018
Size5.13 Mb.
#46937
1   ...   7   8   9   10   11   12   13   14   ...   18

Footnotes


1040:1 See note on hexachordal system.

7. THE UNIVERSAL CONSONANCES OF ALL SIX PLANETS, LIKE COMMON FOUR-PART COUNTERPOINT, CAN EXIST


[295] But now, Urania, there is need for louder sound while I climb along the harmonic scale of the celestial movements to higher things where the true archetype of the fabric of the world is kept hidden. Follow after, ye modern musicians, and judge the thing according to your arts, which were unknown to antiquity. Nature, which is never not lavish of herself, after a lying-in of two thousand years, has finally brought you forth in these last generations, the first true images of the universe. By means of your concords of various voices, and through your ears, she has whispered to the human mind, the favorite daughter of God the Creator, how she exists in the innermost bosom.

(Shall I have committed a crime if I ask the single composers of this generation for some artistic motet instead of this epigraph? The Royal Psalter and the other Holy Books can supply a text suited for this. But alas for you! No more than six are in concord in the heavens. For the moon sings here monody separately, like a dog sitting on the Earth. Compose the melody; I, in order that the book may progress, promise that I will watch carefully over the six parts. To him who more properly expresses the celestial music described in this work, Clio will give a garland, and Urania will betroth Venus his bride.)

It has been unfolded above what harmonic ratios two neighbouring planets would embrace in their extreme movements. But it happens very rarely that two, especially the slowest, arrive at their extreme intervals at the same time; For example, the apsides of Saturn and Jupiter are about 81° apart. Accordingly,

p. 1041


while this distance between them measures out the whole zodiac by definite twenty-year leaps 1, eight hundred years pass by, and nonetheless the leap which concludes the eighth century, does not carry precisely to the very apsides; and if it digresses much further, another eight hundred years must be awaited, that a more fortunate leap than that one may be sought; and the whole route must be repeated as many times as the measure of digression is contained in the length of one leap. Moreover, the other single pairs of planets have periods like that, although not so long. But meanwhile there occur also other consonances of two planets, between movements whereof not both are extremes but one or both are intermediate; and those consonances exist as it were in different tunings [tensionibus]. For, because Saturn tends from G to b, and slightly further, and Jupiter from b to d and further; therefore between Jupiter and Saturn there can exist the following consonances, over and above the octave: the major and minor third and the perfect fourth, either one of the thirds through the tuning which maintains the amplitude of the remaining one, but the perfect fourth through the amplitude of a major whole tone. For there will be a perfect fourth not merely from G of Saturn to cc of Jupiter but also from A of Saturn to dd of Jupiter and through all the intermediates between the G and A of Saturn and the cc and dd of Jupiter. But the octave and the perfect fifth exist solely at the points of the apsides. But Mars, which got a greater interval as its own, received it in order that it should also make an octave with the upper planets through some amplitude of tuning. Mercury received an interval great enough for it to set up almost all the consonances with all the planets within one of its periods, which is not longer than the space of three months. On the other hand, the Earth, and Venus much more so, on account of the smallness of their intervals, limit the consonances, which they form not merely with the others but with one another in especial, to visible fewness. But if three planets are to concord in one harmony, many periodic returns are to be awaited; nevertheless there are many consonances, so that they may so much the more easily take place, while each nearest consonance follows after its neighbour, and very often threefold consonances are seen to exist between Mars, the Earth, and Mercury. But the consonances of four planets now begin to be scattered throughout centuries, and those of five planets throughout thousands of years.

But that all six should be in concord [296] has been fenced about by the longest intervals of time; and I do not know whether it is absolutely impossible for this to occur twice by precise evolving or whether that points to a certain beginning of time, from which every age of the world has flowed.

But if only one sextuple harmony can occur, or only one notable one among many, indubitably that could be taken as a sign of the Creation. Therefore we must ask, in exactly how many forms are the movements of all six planets reduced to one common harmony? The method of inquiry is as follows: let us begin with the Earth and Venus, because these two planets do not make more than two consonances and (wherein the cause of this thing is comprehended) by means of very short intensifications of the movements.

Therefore let us set up two, as it were, skeletal outlines of harmonies, each skeletal outline determined by the two extreme numbers wherewith the limits

p. 1042

of the tunings are designated, and let us search out what fits in with them from the variety of movements granted to each planet.



Harmonies of all the Planets, or Universal Harmonies in the Major Mode



Directory: Texts
Texts -> The law of georgia
Texts -> Тексты для восприятия и понимания речи на слух к учебному пособию для гимназий и лицеев Английский язык/Англійская мова. 11 класс”. Минск. Вышэйшая школа, 2015. Unit 1: Family
Texts -> Text Books on the Ada Programming Language The following is a list of Ada textbooks. This list is provided for reference information and does not constitute an endorsement
Texts -> Notes mj notes to Gregory 7/27/14 at 10 pm
Texts -> Recitation of the Qur’ān
Texts -> Digital Play – Virtual Worlds, Virtual Communities ha&S 251 e fall 2006
Texts -> Adi autocad's Device-Independent Binary Plotter Format, a vector format generated by Autocad. Ai
Texts -> Abstract (summary)
Texts -> Henry e. Lowood
Texts -> Grozny Grozny is the capital of the Chechen Republic in Russia. The city lies on the Sunzha River. According to the 2002 All-Russia population census, the city had a population of 210

Download 5.13 Mb.

Share with your friends:
1   ...   7   8   9   10   11   12   13   14   ...   18




The database is protected by copyright ©ininet.org 2024
send message

    Main page